Complete guide to Twilio US calling rates including outbound, inbound, toll-free, and hidden costs.
US Outbound
$0.013
/minute
US Inbound
$0.0085
/minute
Phone Number
$1.15
/month
Quick Answer: Twilio US outbound voice calls cost $0.013 per minute for local/mobile numbers, $0.022 for toll-free. Inbound is $0.0085/min (local) or $0.013/min (toll-free). For AI voice agents, add $0.05-0.12/min for STT+TTS+AI.
All Twilio voice rates for United States calls, including outbound, inbound, and phone numbers.
| Destination | Rate/Min |
|---|---|
| Local Numbers | $0.013 |
| Mobile Numbers | $0.013 |
| Toll-Free (1-800, etc.) | $0.022 |
| Number Type | Rate/Min |
|---|---|
| Local Number | $0.0085 |
| Toll-Free Number | $0.013 |
Local numbers offer 35% lower inbound rates than toll-free.
| Number Type | Monthly Fee |
|---|---|
| Local Number | $1.15/mo |
| Toll-Free (1-800, 1-888) | $2.15/mo |
| Vanity Toll-Free | $2.15/mo |
| Feature | Cost |
|---|---|
| Call Recording | $0.0025/min |
| Transcription | $0.05/min |
| Carrier Lookup | $0.005/lookup |
| AMD (Voicemail Detection) | $0.0075/call |
Beyond the base per-minute rate, these costs can significantly impact your total spend.
Recording Storage
$0.0025/min recording + storage fees for retention beyond 30 days.
STIR/SHAKEN
Required for US calls. Included but A-level attestation needs verified numbers.
AI Stack Costs
STT ($0.006/min) + TTS ($0.015-0.03/min) + AI ($0.03-0.06/min) = $0.05-0.12 extra.
Development Time
2-3 months to build AI voice agent from scratch. Factor in engineering costs.
Total Cost Reality Check
While Twilio US outbound is $0.013/min, building a complete AI voice agent costs $0.08-0.15/min total when you add STT, TTS, AI models, infrastructure, and maintenance. All-in-one platforms like Edesy AI Voice Agent offer $0.04-0.07/min with everything included.
Compare total costs and time-to-market for US voice AI solutions.
| Platform | Total Cost/Min | US Outbound | AI Included | Dev Time | Best For |
|---|---|---|---|---|---|
| Twilio DIY | $0.08-0.15 | $0.013 | 2-3 months | Custom solutions | |
| Retell AI | $0.10-0.12 | Included | Days | Quick launch | |
| Vapi | $0.05-0.10 | Included | Days | Developers | |
| Edesy AI Voice Recommended | $0.04-0.07 | Included | Days | Best value |
Works with existing Twilio numbers. Deploy in days, not months.
Twilio Conversation Relay enables real-time AI conversations over voice calls.
Stop managing Twilio + STT + TTS + AI separately. Edesy AI Voice Agent includes everything.
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Edesy AI Voice Agent
50+ US businesses use Edesy AI Voice Agent for customer support and sales.
Step-by-step guide to estimating your total voice costs.
Calculate expected monthly outbound and inbound minutes. For AI voice agents, typical call duration is 3-5 minutes.
Outbound minutes x $0.013 + Inbound minutes x $0.0085 = Base voice cost. Add $1.15/mo per phone number.
For AI voice: Add STT ($0.006/min), TTS ($0.015-0.03/min), and AI model ($0.03-0.06/min). Total AI addition: $0.05-0.12/min.
Add recording ($0.0025/min), transcription ($0.05/min), or other features as needed. Do not forget storage costs for recordings.
Example: 10,000 minutes/month US outbound AI voice agent
With Edesy AI Voice Agent at $0.05/min: $500/mo - saving $531/mo (51%)